Essays about: "delay-and-sum"

Showing result 1 - 5 of 8 essays containing the word delay-and-sum.

  1. 1. Detection and Tracking of Elephants using Seismic Direction of Arrival Estimates

    University essay from Linköpings universitet/Reglerteknik

    Author : Albin Westlund; Daniel Goderik; [2023]
    Keywords : Wildlife Conservation; DOA Estimation; Geophone Array; Target Tracking; Elephant Detection;

    Abstract : As human settlement expands into the natural habitats of wild animals, the conflict between humans and wildlife increases. The human-elephant conflict is one that causes a tremendous amount of damage, often to poor villages close to the savannah. READ MORE

  3. 2. 3D Synthetic Aperture Imaging Using LaserUltrasonics

    University essay from Luleå tekniska universitet/Signaler och system

    Author : Louise Zalamans; [2021]
    Keywords : Synthetic Aperture Focusing Technique; SAFT; 3D imaging;

    Abstract : Synthetic Aperture Focusing Technique (SAFT) is a powerful method to createfocused images of the inside of opaque samples by using delay-and-sum of acquireddata. It gives a high resolution and when using a generation laser and a detectionlaser it is also non-contact. READ MORE

  4. 3. Beamforming and Blind Signal Separation for Far-field Voice Capture using a Microphone Array

    University essay from Lunds universitet/Institutionen för elektro- och informationsteknik

    Author : Luke Postema; Johan Davidsson; [2019]
    Keywords : Beamforming; Microphone array; Minimum variance distortionless response; delay-and-sum; direction of arrival; blind signal separation; Technology and Engineering;

    Abstract : With the evolving technology of mobile electronics and other forms of communication methods, an increasing demand of speech intelligibility is introduced. In a conference room for example, multiple microphones are placed directly in front of the speaker in order to pick up clean speech. However, several challenges still exist. READ MORE

  5. 4. Array Element Localisation

    University essay from Lunds universitet/Matematisk statistik

    Author : Axel Sundberg; Olle Bristedt; [2017]
    Keywords : Mathematics and Statistics;

    Abstract : Abstract—This article have been written in cooperation with The Swedish Defense Research Agency (FOI). The article proposes a method to calibrate hydrophone positions for improved underwater survailence in The Baltic Sea. READ MORE

  6. 5. Speech Enhancement in Hands-Free Device (Hearing Aid) with emphasis on Elko's Beamformer

    University essay from Blekinge Tekniska Högskola/Sektionen för ingenjörsvetenskap

    Author : TELAGAREDDI S N U V RAMESH; [2012]
    Keywords : Speech Enhancement; Speech intelligibility; Speech Communication and Beamforming ;

    Abstract : In general, an uncontrolled environment may contain degradation components like background noise, speech from other speakers etc. along with required speech components. It is very tough to concentrate only on speech signals in presence of background noise for normal listeners and hearing impaired persons. READ MORE